Magnetic and electric properties of Sn-oxide/M (M=Fe, Ni, Co) multilayers

K. Matsuyama, K. Nishihata, S. Komatsu, Yukio Nozaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Magnetic and electronic properties of novel semiconductive-oxide/ferromagnet multilayers of Sn-oxide and ferromagnetic metals (Fe, Ni, Co), deposited with a multi-target rf magnetron sputtering system, were studied. Among the studied material systems, Co/Sn-oxide sustains well-defined layer structure and ferromagnetic property for the thinnest thickness of 1 nm. A thermionic CPP transport was observed in [Co(2 nm) /Sn-oxide (4 nm)10, which activation energy was evaluated as 4.4×10-3 erg from the thermal dependence of conductivity. Negative magnetoresistance was observed in two orthogonal directions of in-plane external fields, which confirms spin dependent transport in Sn-oxide thin film. The measured MR change is 0.6 % (δR = 0.8 Ω, Rs=140 Ω) at room temperature.

Original languageEnglish
Pages (from-to)2901-2903
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 1
DOIs
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Oxides
Magnetic properties
Multilayers
Electric properties
magnetic properties
oxides
Ferromagnetic materials
Magnetoresistance
Electronic properties
thermionics
Magnetron sputtering
Oxide films
Activation energy
magnetron sputtering
Thin films
activation energy
conductivity
room temperature
thin films
electronics

Keywords

  • Co/sn-oxide multilayer
  • Current perpendicular to plane
  • Magnetoresistance
  • Spin dependent transport

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Magnetic and electric properties of Sn-oxide/M (M=Fe, Ni, Co) multilayers. / Matsuyama, K.; Nishihata, K.; Komatsu, S.; Nozaki, Yukio.

In: IEEE Transactions on Magnetics, Vol. 35, No. 5 PART 1, 1999, p. 2901-2903.

Research output: Contribution to journalArticle

Matsuyama, K. ; Nishihata, K. ; Komatsu, S. ; Nozaki, Yukio. / Magnetic and electric properties of Sn-oxide/M (M=Fe, Ni, Co) multilayers. In: IEEE Transactions on Magnetics. 1999 ; Vol. 35, No. 5 PART 1. pp. 2901-2903.
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